3-tier architecture

A 3-tier architecture, also known as a three-tier software architecture, is a frequently used structure for the development of software applications. This architecture consists of three tiers, each of which fulfills specific functions and tasks.

The first layer, also known as the presentation layer or user interface, is responsible for the presentation and interaction with the user. This is where the visual elements of the application are created, such as user interfaces, menus and forms. The presentation layer enables users to interact with the software and make entries.

The second layer, also known as the logic layer or business layer, contains the actual logic and functionality of the application. This is where data processing, calculations and business rules are implemented. The logic layer ensures that the application performs the required operations and generates the desired results.

The third layer, also known as the data layer or database, is responsible for storing and managing data. This is where the databases and file systems are set up to store the application’s persistent data. The data tier enables access to stored information and ensures that the data is managed consistently and securely.

A 3-tier architecture offers numerous advantages, including a clear separation of responsibilities, improved maintainability and scalability of the application and increased security. By splitting the software into separate tiers, each tier can be developed, tested and updated independently of the others.

To summarize, a 3-tier architecture, also known as a three-tier software architecture, is a common structure for developing software. By splitting the application into presentation layer, logic layer and data layer, this architecture enables efficient development, maintenance and scaling of software applications.